Orifice definition

ôrə-fĭs, ŏr-
Frequency:
The definition of an orifice is an opening, especially an opening to the body or the opening of a tube or pipe.

The mouth is an example of an orifice.

noun
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An opening, especially to a cavity or passage of the body.
noun
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A mouth or aperture of a tube, cavity, etc.; opening.
noun
2
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A mouth or aperture, as of a tube, pipe, etc.; an opening; as,
noun
2
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An opening, especially to a cavity or passage of the body; a mouth or vent.
noun
2
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Other Word Forms

Noun

Singular:
orifice
Plural:
orifices

Origin of orifice

  • Middle English from Old French from Late Latin ōrificium Latin ōs ōr- mouth ōs- in Indo-European roots Latin -ficium a making, doing (from facere to make dhē- in Indo-European roots)

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English, from Old French, from Late Latin orificium (“an opening, literally the making of a mouth"), compound of os (“mouth") + facere (“to make")

    From Wiktionary